Believers, fear Allah and stand with the truthful. 119 It did not behove the people of Madinah and the bedouin Arabs around them that they should refrain from accompanying the Messenger of Allah and stay behind and prefer their own security to his. For whenever they suffer from thirst or weariness or hunger in the Way of Allah, and whenever they tread a place which enrages the unbelievers (whenever anything of this comes to pass), a good deed is recorded in their favour. Allah does not cause the work of the doers of good to go to waste. 120 And whatever they spend, small or great, or any valley they cross – it is all recorded for them, so that Allah may reward them for their best deeds. 121 ۞ With all this, it is not desirable that all of the believers take the field [in time of war]. From within every group in their midst, some shall refrain from going forth to war, and shall devote themselves [instead] to acquiring a deeper knowledge of the Faith and [thus be able to] teach their home-coming brethren, so that these [too] might guard themselves against evil. 122